Finding the Fourth Proportional to 145,663,724.50, 218,353,573.50 and 58,199,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   145,663,724.50 : 218,353,573.50 = 58,199,164.72 : x
2. Step 2: Convert to fraction form
   145,663,724.50/218,353,573.50 = 58,199,164.72/x
3. Step 3: Cross multiply
   145,663,724.50x = 218,353,573.50 × 58,199,164.72
4. Step 4: Simplify right side
   145,663,724.50x = 12,707,995,591,327,126
5. Step 5: Solve for x
   x = 12,707,995,591,327,126/145,663,724.50
6. Step 6: Final answer
   x = 87,242,006.44